📌 Product Overview
The XL-2835SURC-05 is a high-brightness red SMD LED from XINGLIGHT, utilizing the standard 2835 footprint (2.8mm x 3.5mm). Designed for high-power performance, it features a water-clear colloid optimized for superior luminous intensity and light transmission. 💡
Target applications range from dense indoor lighting fixtures to commercial signage. The real design focus here is thermal management at high drive currents. While the compact footprint aids layout density, engineers must carefully balance the 150mA forward current against the Absolute Maximum Ratings to prevent thermal runaway in tight arrays. ✨
🚀 Typical Applications
Based on its high luminous intensity and dominant wavelength range (615-630nm), the XL-2835SURC-05 is ideal for visibility-critical and illumination tasks:
- Commercial Lighting: High-contrast advertising lightboxes and channel letters.
- Indoor Illumination: Flexible light strips, downlights, and LED tube replacements.
- Backlighting: LCD indicator lights and display panels requiring red spectrum.
- Decorative Lighting: Accent lighting and architectural strips where color consistency is vital. 👇
📈 Key Technical Specifications
The following electrical and optical characteristics are measured at $T_a=25^\circ C$. Designers should use the "Typical" values for estimation but plan circuits around the "Max" limits to ensure consistency.
| Parameter | Symbol | Min. | Typ. | Max. | Unit | Conditions |
|---|---|---|---|---|---|---|
| Luminous Intensity | $I_V$ | 13 | 20 | 27 | lm | $I_F=150\text{mA}$ |
| Dominant Wavelength | $\lambda_d$ | 615 | 625 | 630 | nm | $I_F=150\text{mA}$ |
| Forward Voltage | $V_F$ | 1.8 | - | 2.4 | V | $I_F=150\text{mA}$ |
| Viewing Angle | $2\theta_{1/2}$ | - | 120 | - | deg | $I_F=150\text{mA}$ |
| Reverse Current | $I_R$ | - | - | $\le 5$ | $\mu$A | $V_R=5\text{V}$ |
💡 Note: The component is sorted by brightness (H8-J2) and voltage (N12-7 to N12-9) bins to ensure uniformity in mass production.
🔒 Absolute Maximum Ratings & Process Limits
Exceeding these parameters risks irreversible damage. Safe operation requires staying within these boundaries, even during transient pulses.
| Parameter | Symbol | Max. Value | Unit | Notes |
|---|---|---|---|---|
| Max Power Dissipation | $P_D$ | 360 | mW | @ $T_a=25^\circ C$, derate above |
| DC Forward Current | $I_F$ | 150 | mA | Continuous operation |
| Peak Forward Current | $I_{FP}$ | 300 | mA | Pulse width $\le 0.1\text{ms}$, Duty $\le 1/10$ |
| Reverse Voltage | $V_R$ | 5 | V | |
| ESD Ability | ESD | 2000 | V | Human Body Model (HBM) |
| Operating Temperature | $T_{OPR}$ | -40 ~ +85 | $^\circ C$ |
⚠️ Warning: Soldering must not exceed 260°C for longer than 6 seconds to prevent substrate delamination.
🏗️ Package, Dimensions & Assembly Notes
- Dimensions: 2.8mm (L) x 3.5mm (W) x 0.8mm (H).
- Packaging: EIA standard compliant, suitable for automated SMT pick-and-place machines.
- Soldering Profile: Designed for Infrared Reflow processes.
- Lead-Free: Max 255°C (Peak), 60-120s above 217°C.
- Lead Process: Max 235°C (Peak), 60-150s above 183°C.
- Moisture Sensitivity: MSL Level 3. Ensure proper baking before reflow if the moisture barrier bag has been open for more than 168 hours. 🛠️
📦 Sourcing & Supply Considerations
- Bin Selection: Verify specific Brightness (H8-J2) and Voltage (N12-7/8/9) codes with the factory to match your driver design.
- Sample Availability: Engineering samples are typically available to verify color bin and thermal performance before bulk ordering.
- Authenticity: Always source through authorized XINGLIGHT channels to avoid counterfeits that may not meet the ROHS compliance or thermal specs.
- Lead Time: Standard EIA packaging usually allows for rapid fulfillment, but custom bin sorting may impact delivery schedules.
❓ FAQ
Q: What is the maximum current I can drive this LED with continuously? A: The Absolute Maximum Rating for continuous forward current ($I_F$) is 150mA. While pulse currents can reach 300mA, exceeding 150mA continuously will likely degrade the LED junction rapidly due to thermal overstress.
Q: Can I use a standard lead-free reflow profile for this component? A: Yes, the XL-2835SURC-05 is designed for lead-free processes. The peak temperature should not exceed 255°C, and the time above 217°C should be kept between 60 to 120 seconds.
Q: What does the "water-clear colloid" specification mean for my design? A: "Water-clear" refers to the transparent epoxy encapsulation. Unlike diffused LEDs, this provides higher luminous intensity and a tighter viewing angle (120°), making it ideal for light boxes and signage where distance and brightness are critical.
Q: How do I handle the Moisture Sensitivity Level (MSL)? A: This component is classified as MSL 3. If the sealed bag has been open for more than 168 hours (floor life), you must bake the components at 80±5°C for 24 hours to prevent popcorning or cracking during the high-heat reflow process.
Q: Are there specific bin codes I need to specify when ordering? A: Yes. To ensure visual uniformity, you should specify the Brightness Bin (e.g., J1 for 20-23lm) and Voltage Bin (e.g., N12-8 for 2.0-2.2V). Mixing bins can result in visible color or intensity differences in the final array.
